Improvement in machines for bending tube-sockets



2 Shts sheet 1. W. L. NEWSHAM.

Machines for Bending Tube Sockets. N0.137,792, PatentedApr iH5,l873.

AM PHOT0-UTH06IPAPH10 co. n1( osnomvs moms) 2 Shee1s-8heet 2.

PateniedApri!15,1873.

' ama AM. P110 m-UTHOGHAFHIC co. MY.( mean/ E1; PRacEss) UNITED f STATESPATENT ()FFICE MORRIS, TASKER & 00., OF SAME PLACE.

IMPROVEMENT IN'MAFCHINES Foe BENDING TUBE-SOCKETS.

gpecification forming part of Letters Patent No. 137,792, dated Apiil15, 1873 application filed December 31, 1872.

To all whom it may concern.-

Be it known that I, WILLIAM L. NEwsHAM,

of the city of Philadelphia and State of Penn.

sylvania. have invented certain Improvements in Machines for BendingMetal Tube Sockets, of which the following is a specification:

My invention relates to the combination of an articulated mandrel forbending the middle portion of the skelp with the lower die and two otherdies, in combination with the said die and mandrel for bending theremaining parts, the mandrel being tilted in its upward movement for thedischarge of the socket, as hereinafter fully described.

Figure 1 is a plan view of the improved machine. Fig. 2, Sheet No. 2, isa side elevation of the same. Fig. 3 is an isometric-a1 view of theslide E and mandrel D.

Like letters in all the figures indicate the same parts.

Ais the bed-plate, andB and B the housings. O is a stationary die, intowhich the middle portion of the skelp m is bent by means of the mandrelD, connected at its inner end with the radial slide E, which moves inthe bearing F on the front of the housing B. G and G are movable dies,arranged at angles with the die 0, for bending the outer portions of theskelp. These dies are provided with stems or slides E and E, which arecaused to move in the bearings F and F I have represented on the frontends of the shafts G, G and G2 cams H, H and H for giving an inwardmotion to the mandrel D, and the dies 0 and O for bending the skelp, andsprings I, 1 and I for returning them to their outer position.

I do not confine myself to this mode of operating the mandrel and dies,as eccentrics, or other suitable mechanism may be used. When eccentricsare used the springs are dispensed with.

On the shafts G, G and G there are gearwheels J, J and J which gear intothe wheel J 3 on the driving-shaft G The slides E, E

and E are so arrangedin relation to each other and to the die 0, thatthe mandrel D receives its downward motion to press the middle portionof the skelp into the die 0 first; then the die 0 commences movingsomewhat in advance of the die 0 so that one of the outer portions maybe bent down on the mandrel and the other so as to overlap it for thewelding process. The mandrel D is pivoted at its inner end to the slideE, as seen in Fig. 3, so that when the slide assumes its upward positionthe mandrel is thrown on a descending angle for the discharge of thebent skelp.

1 claim as my invention- 1. The combination of the articulated mandrelD, die 0, and slide E, operated by means of the cam H, or other suitablemechanism, in such a manner that by the downward movement of the slidethe skelp is pressed by the mandrel into the die and bends the middlepart of the skelp, and in the upward movement of the same, after thecompletion of the bending process by the other dies, the mandrel istilted to discharge the socket from the mandrel, substantially asdescribed.

2. The combination of two movable dies 0 and C for bending the outerportions of the skelp, in combination with the die (3 and mandrel D,either movable or stationary, the said dies moving one a little inadvance of the other and in different planes with each other, and atangles with and above the horizontal plane of the lower die 0,substantially in the manner set forth.

WILLIAM L. NEWSHAM.

Witnesses:

J os. W. HARRISON, STEPHEN USTICK.

